Dynamite Friction 631-31104R Disc Brake Rotor - Rear Right

Overview of the DFC Brake Rotor - Drilled and Slotted - Silver

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver is engineered for BMW 5 Series models including the 528i, 528i xDrive, 535d, 535d xDrive, 535i, 535i xDrive, and ActiveHybrid 5. Designed to provide reliable braking performance, this vented disc brake rotor features a directional, slotted, and drilled surface to enhance heat dissipation and maintain consistent stopping power.

• Part Number: 631-31104R
• Compatible with BMW 528i, 528i xDrive, 535d, 535d xDrive, 535i, 535i xDrive, ActiveHybrid 5
• Disc Finish: Plain with zinc silver hat finish
• Surface Type: Directional slotted and drilled
• Vented rotor design for improved cooling
• Rust resistant coating for extended durability
• Dimensions: 330 mm outside diameter, 69.1 mm overall height
• Bolt Hole Quantity: 5 with 16.6 mm diameter
• Bolt Circle Diameter: 120 mm
• Nominal Thickness: 20 mm, Discard Thickness: 18.4 mm

Details on the DFC Brake Rotor - Drilled and Slotted - Silver Line

The DFC Brake Rotor - Drilled and Slotted - Silver line from Dynamite Friction focuses on rotors that combine drilled holes and slots on the braking surface. This design helps to reduce brake fade by improving heat dissipation and allowing gases and debris to escape during braking. The zinc silver finish on the rotor hat provides corrosion resistance, which is essential for maintaining rotor integrity over time. This rotor line is engineered to meet the specific requirements of BMW 5 Series vehicles, ensuring proper fitment and performance.

Technical Specifications and Features

This disc brake rotor is vented, which means it has internal vanes between the two braking surfaces to enhance airflow and cooling. The rotor’s directional slotted and drilled surface improves water and dust evacuation, which helps maintain consistent braking under various conditions. The rotor measures 330 mm in outside diameter and 69.1 mm in overall height, with a nominal thickness of 20 mm and a discard thickness of 18.4 mm, ensuring it meets OEM standards for replacement. The bolt pattern includes five holes with a 16.6 mm diameter and a 120 mm bolt circle diameter, matching the BMW 5 Series specifications.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on BMW 528i and 535i models
• Improves braking performance in wet or dusty conditions due to slotted and drilled design
• Reduces brake fade during extended or aggressive driving
• Prevents rust and corrosion with zinc silver hat finish and rust-resistant coating
• Maintains proper rotor thickness and structural integrity for safe braking

Installation Notes and Tips

• Ensure compatibility with BMW 528i, 528i xDrive, 535d, 535d xDrive, 535i, 535i xDrive, and ActiveHybrid 5 models before installation
• Check rotor thickness before installation; discard if below 18.4 mm
• Clean hub surface and mounting points to prevent uneven rotor seating
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Inspect brake pads for wear and replace if necessary to optimize rotor performance

Quality Assurance and Warranty

Dynamite Friction manufactures the 631-31104R rotor to meet strict quality standards, ensuring reliable performance and durability. The rust-resistant coating and zinc silver finish contribute to long-term corrosion protection. While specific warranty details are not provided, Dynamite Friction products typically adhere to industry standards for defect coverage. Always consult product documentation or the manufacturer for warranty information.